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There are white debris on both knees, which is not painful or itchy

Nov 12 20213 people replied
Description Of Condition:

At first, there was only one place, then both knees, and then slowly grew larger. It's not painful or itchy. The bottom is red. It's like sand. The surface is rough and feels like sandpaper. It's very hard and dry. And if you pull it down a little, the lower layer will bleed. After taking a bath every time, you can rub off a layer with blisters, but you can't use too much force, otherwise you will bleed.

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